the alleles an organism inherits from its parents make up its genotype. an organisms genotype for a gene…

the alleles an organism inherits from its parents make up its genotype. an organisms genotype for a gene helps determine the organisms phenotype, or observable trait, for that gene. alleles can interact with each other in different ways. some alleles are dominant, which means that even if only one copy of the allele is present, the organism will have that phenotype. other alleles are recessive, which means that both copies of the allele must be present for the organism to have that phenotype. in a species of fish, some fish have long fins and some fish have short fins. the allele for long fins (f) is dominant over the allele for short fins (f). each fish has two alleles, so an individual fish can have the genotype ff, ff, or ff. complete the table. genotype phenotype long fins short fins ff ff ff

the alleles an organism inherits from its parents make up its genotype. an organisms genotype for a gene helps determine the organisms phenotype, or observable trait, for that gene. alleles can interact with each other in different ways. some alleles are dominant, which means that even if only one copy of the allele is present, the organism will have that phenotype. other alleles are recessive, which means that both copies of the allele must be present for the organism to have that phenotype. in a species of fish, some fish have long fins and some fish have short fins. the allele for long fins (f) is dominant over the allele for short fins (f). each fish has two alleles, so an individual fish can have the genotype ff, ff, or ff. complete the table. genotype phenotype long fins short fins ff ff ff

Answer

Explanation:

Step1: Recall dominant - recessive rule

Since allele for long fins ($F$) is dominant over allele for short fins ($f$), a fish with at least one $F$ allele will have long fins.

Step2: Analyze genotype $FF$

The genotype $FF$ has two dominant alleles. So the phenotype is long fins.

Step3: Analyze genotype $Ff$

The genotype $Ff$ has one dominant allele ($F$). So the phenotype is long fins.

Step4: Analyze genotype $ff$

The genotype $ff$ has two recessive alleles. So the phenotype is short fins.

Answer:

Genotype Long fins Short fins
$FF$ $\bigcirc$
$Ff$ $\bigcirc$
$ff$ $\bigcirc$